For years, Scientific Anglers' tippet materials were marketed as being something they weren't. The diameters, breaking strengths, and performance just weren't accurate—or up to par with their own rigorous standards.
Their new Fluorocarbon tippet is, simply put, the strongest and most reliable they have ever created, with the highest knot strength of anything they tested. Period. You can fish the other stuff, or you can Fish the Truth.
Scientific Anglers' IGFA Fluorocarbon is precisely rated to IGFA standards.